Data as of November 4, 2026 · refreshed automatically from the official Colorado voter file
Denver County, CO has 458,945 active registered voters — 8.5% Republican, 39.4% Democratic, and 49.6% with no party affiliation, as of November 2026.
Party registration
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 1320216243 | 1,320 | 1,017 | 77.05% |
| 2 | 1320616636 | 1,280 | 917 | 71.64% |
| 3 | 1320616637 | 1,486 | 1,053 | 70.86% |
| 4 | 1260316309 | 1,543 | 1,071 | 69.41% |
| 5 | 1260916926 | 1,466 | 1,015 | 69.24% |
| 6 | 1310216218 | 1,352 | 933 | 69.01% |
| 7 | 1330816838 | 1,795 | 1,232 | 68.64% |
| 8 | 1310216211 | 1,651 | 1,128 | 68.32% |
| 9 | 1320216244 | 1,308 | 884 | 67.58% |
| 10 | 1310916901 | 1,721 | 1,162 | 67.52% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
How Denver County voted for president
Election results are public records.
Denver County at a glance.
Denver County had an estimated 729,019 residents in July 2024, the second most populous of Colorado's 64 counties, up 1.9% since the 2020 census. Of those, 600,540 are 18 or older, the voting-age population, and 12.9% are 65 or older. Its 458,945 active registered voters equal about 76.4% of that voting-age population.
It covers 153 square miles of land (4,762 people per square mile). The American Community Survey (2020-2024) puts it at a median age of 35.3, a median household income of $94,718, 56.5% of adults 25 and older holding a bachelor's degree or higher and 48.8% of occupied homes owned by the people living in them. In 2024, 363,076 votes were cast for president, about 60.5% of the voting-age population; the Democratic ticket took 76.7% and the Republican ticket 20.6%.
The two-party margin moved from D+52.5 in 2008 to D+56.1 in 2024.
- Population (2024 estimate)
- 729,019
- Population (2020 census base)
- 715,513
- Voting-age population (18+)
- 600,540
- Active voters per 100 adults
- 76.4
- Residents 65 and older
- 12.9%
- People per square mile
- 4,762
- Land area
- 153 sq mi
- Median age
- 35.3
- Median household income
- $94,718
- Adults 25+ with a bachelor's degree
- 56.5%
- Owner-occupied homes
- 48.8%
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 76.7% | 20.6% | D+56.1 | 363,076 |
| 2020 | 79.6% | 18.2% | D+61.4 | 393,827 |
| 2016 | 75.2% | 18.8% | D+56.4 | 232,291 |
| 2012 | 73.5% | 24.4% | D+49.1 | 285,564 |
| 2008 | 75.5% | 23.0% | D+52.5 | 271,533 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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